Monthly outlook for Purchase Line, PA: average high 47.5°, average low 33.4°. That is 1.3° above the climate normal for November. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 22 November (59.6°), the coolest 27 November (21.8°).
47.5°/33.4°
Average high / low
+1.3°
Above normal
4 / 6
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 November – 21 November
47.2°
45.7°
+0.9°
22 November – 1 December
47.9°
43.1°
+2.7°
2 December – 11 December
at normal
38.6°
—
November records over 66 years
74.5°5 November 2024All-time high
6.3°16 November 1967All-time low
Climate normals and records are computed from the nearest reference point — Westover (13 mi).
Fri, 1342° / 29°0
42 °
Purchase Line, Friday, 13 November
Overcast. High 42°, low 29°.
Pressure29.80 inHg
Wind10.4 mph NW
Humidity65%
Visibility6.2 mi
Dew point24°
Sat, 1439° / 32°0.04
39 °
Purchase Line, Saturday, 14 November
Light rain. High 39°, low 32°.
Pressure30.00 inHg
Wind13 mph W
Humidity78%
Visibility6.2 mi
Dew point32°
Sun, 1544° / 38°0.01
44 °
Purchase Line, Sunday, 15 November
Light rain. High 44°, low 38°.
Pressure30.27 inHg
Wind13.8 mph NW
Humidity61%
Visibility6.2 mi
Dew point29°
Mon, 1644° / 33°0.02
44 °
Purchase Line, Monday, 16 November
Light rain. High 44°, low 33°.
Pressure30.50 inHg
Wind8.4 mph NW
Humidity70%
Visibility—
Dew point33°
Tue, 1747° / 28°0
47 °
Purchase Line, Tuesday, 17 November
Clear. High 47°, low 28°.
Pressure30.50 inHg
Wind5.8 mph W
Humidity60%
Visibility—
Dew point31°
Wed, 1848° / 31°0
48 °
Purchase Line, Wednesday, 18 November
Clear. High 48°, low 31°.
Pressure30.42 inHg
Wind3.9 mph W
Humidity54%
Visibility—
Dew point30°
Thu, 1952° / 33°0
52 °
Purchase Line, Thursday, 19 November
Overcast. High 52°, low 33°.
Pressure30.36 inHg
Wind3.7 mph SW
Humidity44%
Visibility—
Dew point29°
Fri, 2053° / 37°0
53 °
Purchase Line, Friday, 20 November
Overcast. High 53°, low 37°.
Pressure30.24 inHg
Wind8.4 mph SW
Humidity51%
Visibility—
Dew point33°
Sat, 2155° / 37°0
55 °
Purchase Line, Saturday, 21 November
Mostly clear. High 55°, low 37°.
Pressure30.18 inHg
Wind8 mph W
Humidity61%
Visibility—
Dew point39°
Sun, 2260° / 40°0
60 °
Purchase Line, Sunday, 22 November
Clear. High 60°, low 40°.
Pressure29.97 inHg
Wind8.3 mph S
Humidity50%
Visibility—
Dew point38°
Mon, 2354° / 44°0
54 °
Purchase Line, Monday, 23 November
Light rain. High 54°, low 44°.
Pressure29.80 inHg
Wind10.3 mph SW
Humidity69%
Visibility—
Dew point42°
Tue, 2454° / 41°0.2
54 °
Purchase Line, Tuesday, 24 November
Rain. High 54°, low 41°.
Pressure29.91 inHg
Wind9.9 mph E
Humidity67%
Visibility—
Dew point41°
Wed, 2553° / 31°0.23
53 °
Purchase Line, Wednesday, 25 November
Snow. High 53°, low 31°.
Pressure29.94 inHg
Wind13.5 mph S
Humidity87%
Visibility—
Dew point35°
Thu, 2632° / 24°0.02
32 °
Purchase Line, Thursday, 26 November
Light snow. High 32°, low 24°.
Pressure30.30 inHg
Wind14.3 mph W
Humidity45%
Visibility—
Dew point12°
Fri, 2736° / 22°0
36 °
Purchase Line, Friday, 27 November
Overcast. High 36°, low 22°.
Pressure30.42 inHg
Wind7.6 mph SW
Humidity28%
Visibility—
Dew point4°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2843° / 32°0.21
43 °
Purchase Line, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.21 in
Chance of precipitation53%
Record high67° (1990)
Record low17° (2002)
Sun, 2941° / 30°0.09
41 °
Purchase Line, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high41°
Average low30°
Average precipitation0.09 in
Chance of precipitation38%
Record high60° (1998)
Record low13° (1976)
Mon, 3041° / 30°0.12
41 °
Purchase Line, Monday, 30 November
Climate normal for this date — 60-year average.
Average high41°
Average low30°
Average precipitation0.12 in
Chance of precipitation42%
Record high65° (1991)
Record low6° (1976)
Tue, 0141° / 29°0.16
41 °
Purchase Line, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.16 in
Chance of precipitation45%
Record high64° (2006)
Record low6° (1976)
Wed, 0240° / 28°0.12
40 °
Purchase Line, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.12 in
Chance of precipitation47%
Record high64° (1982)
Record low5° (1971)
Thu, 0340° / 27°0.13
40 °
Purchase Line, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.13 in
Chance of precipitation45%
Record high65° (1982)
Record low-3° (1976)
Fri, 0440° / 27°0.11
40 °
Purchase Line, Friday, 4 December
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.11 in
Chance of precipitation38%
Record high65° (2012)
Record low-6° (1966)
Sat, 0539° / 28°0.13
39 °
Purchase Line, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.13 in
Chance of precipitation52%
Record high65° (1982)
Record low7° (1974)
Sun, 0639° / 27°0.15
39 °
Purchase Line, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.15 in
Chance of precipitation55%
Record high65° (1998)
Record low9° (1974)
Mon, 0737° / 26°0.11
37 °
Purchase Line, Monday, 7 December
Climate normal for this date — 60-year average.
Average high37°
Average low26°
Average precipitation0.11 in
Chance of precipitation43%
Record high63° (1998)
Record low9° (2007)
Tue, 0837° / 26°0.1
37 °
Purchase Line, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high37°
Average low26°
Average precipitation0.1 in
Chance of precipitation33%
Record high62° (1966)
Record low9° (1977)
Wed, 0938° / 25°0.16
38 °
Purchase Line, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.16 in
Chance of precipitation37%
Record high64° (1966)
Record low0° (2002)
Thu, 1038° / 26°0.17
38 °
Purchase Line, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.17 in
Chance of precipitation45%
Record high57° (2024)
Record low1° (1977)
Fri, 1137° / 26°0.15
37 °
Purchase Line, Friday, 11 December
Climate normal for this date — 60-year average.
Average high37°
Average low26°
Average precipitation0.15 in
Chance of precipitation47%
Record high58° (2021)
Record low3° (1977)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Purchase Line, PA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Purchase Line, PA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.